Ebyte E72-2G4M02S2B User manual

E72-2G4M02S2B User Manual
CC2640 2.4GHz BLE4.1 SMD Wireless Module

Copyright ©2012–2020，Chengdu Ebyte Electronic Technology Co., Ltd
1
Contents
1 General Introduction··························································································································3
1.1 Brief Introduction························································································································4
1.2 Features····································································································································4
1.3 Application································································································································4
2 Specification and parameter·················································································································5
2.1 limit parameter··························································································································· 5
2.2 Operating parameter·····················································································································5
3 Size and pin definition······················································································································· 6
4 Circuit design·································································································································· 7
5 Operation mode································································································································8
5.1 Multiple roles·····························································································································8
5.2 Transparent Continuous Transmission······························································································· 9
6 Instruction Operation······················································································································· 10
6.1 Command responsE····················································································································10
6.2 AT Command··························································································································· 10
6.3 Mode switching························································································································ 11
6.4 Reset······································································································································11
6.5 Restore the default settings···········································································································11
6.6 Query version information··········································································································· 11
6.7 Query MAC address···················································································································12
6.8 Query / Set device’s name············································································································12
6.9 Query/Set UART configuration······································································································12
6.10 Query/Set device’s role··············································································································12
6.11 Query/Set advertising interval······································································································13
6.12 Query/Set connection interval······································································································13
6.13 Open advertising······················································································································13
6.14 Close advertising····················································································································· 13
6.15 Query/Set power······················································································································14
6.16 Acquire the RSSI of connected devices·························································································· 14
6.17 Disconnection························································································································· 14
6.18 Query/Set UUID······················································································································ 14
6.19 Query/Set advertising data··········································································································15
6.20 Query/Set IBEACON data··········································································································15
6.21 Scan advertising device············································································································· 15
6.22 Connect to specified device·········································································································15
7 Basic operation·······························································································································16
7.1 Hardware design······················································································································· 16
7.2 Programming····························································································································16

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8 FAQ············································································································································ 17
8.1 Communication range is too short·································································································· 17
8.2 Module is easy to damage··········································································································· 17
8.3 BER(Bit Error Rate) is high··········································································································17
9 Production guidance························································································································ 17
9.1 Reflow soldering temperature······································································································· 17
9.2 Reflow soldering curve··············································································································· 18
10 E72 series····································································································································18
11 Antenna recommendation·················································································································19
11.1 Recommendation····················································································································· 19
11.2 Antenna selection·····················································································································19
Revision history································································································································ 20
About us········································································································································· 20

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Disclaimer
EBYTE reserves all rights to this document and the information contained herein.
Products, names, logos and designs described herein may in whole or in part be
subject to intellectual property rights. Reproduction, use, modification or disclosure to
third parties of this document or any part thereof without the express permission of
EBYTE is strictly prohibited.
The information contained herein is provided “as is” and EBYTE assumes no
liability for the use of the information. No warranty, either express or implied, is given,
including but not limited, with respect to the accuracy, correctness, reliability and
fitness for a particular purpose of the information. This document may be revised by
EBYTE at any time. For most recent documents, visit www.ebyte.com.

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1 General Introduction
1.1 Brief Introduction
E72-2G4M02S2B is a small-size SMD RF module BLE
Bluetooth wireless module independently developed based on
CC2640 produced by Texas Instruments (TI)。
CC2640 chip integrates 128KB intra-system programmable
flash and 8KB buffer static RAM (SRAM) and different 2.4GHz
wireless communication protocols. It also has a rich set of
peripherals. Because of its unique ultra-low-power sensor
controller, it’s ideal for connecting external sensors, and it is also
suitable for autonomous collection of analog and digital data while the rest of the system is in sleep mode.Thanks to its
built-in dual-core low-power processor, users can build a complete system based on their own supporting modules. We
used a 24MHz industrial grade high precision low temperature drift active crystal.
The module also supports secondary development. Users can write their own code to achieve the functions.
1.2 Features
The measured communication distance can reach150/300 m;
Maximum transmission power of 1.6mW, software multi-level adjustable;
Built-in BLE 4.1protocol stack；
Built-in 32.768kHz clock crystal oscillator;
Support the global license-free ISM 2.4GHz band;
Built-in high performance low power Cortex-M3 and Cortex-M0 dual core processor;
Rich resources，128KB FLASH，28KB RAM;
Support 1.8V~3.8V power supply，power supply over 3.3Vcan guarantee the best performance;
Industrial grade standard design, support -40 ~ 85 °C for working over a long time;
Support PCB antenna and IPEX interface, users can choose according to needs.
1.3 Application
Smart homes and industrial sensors；
Security system, positioning system；
Wireless remote control, drone；
Wireless game remote control；
Health care products；
Wireless voice, wireless headset；
Automotive industry applications.

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2 Specification and parameter
2.1 limit parameter
Main parameter
Performance
Remark
Min
Max
Power supply （V）
0
3.8
Voltage over 3.6V will cause
permanent damage to module
Blocking power（dBm）
-
10
Chances of burn is slim when
modules are used in short distance
Operating temperature（℃）
-40
85
-
2.2 Operating parameter
Main parameter
Performance
Remark
Min
Type
Max
Operating voltage（V）
1.8
3.3
3.8
≥3.3 V ensures output power
Communication level （V）
3.3
For 5V TTL, it may be at risk of
burning down
Operating temperature （℃）
-40
-
85
Industrial grade
Operating frequency（GHz）
2.402
-
2.480
Support ISM band
Power
Consu
m-ption
TX current（mA）
11
Instant power consumption
RX current（mA）
2.0
Sleep current（μA）
0.2
Shut down by software
Max TX power（dBm）
1.6
2.0
2.5
Receiving sensitivity（dBm）
-96.5
-97
-97.5
Air data rate is 1Mbps
Air data rate（bps）
-
1M
-
User programming to control
Main parameter
Description
Remark
Reference distance
150/300 m
Test condition：clear and open area, antenna gain: 5dBi，
antenna height: 2.5m，air data rate: 250 kbps
Crystal Oscillator
24MHz / 32.768KHz
-
Protocol
BLE 4.1
-
Package
SMD
-
Interface
1.27mm
-
IC
CC2640F128RSMR
-
FLASH
128 KB
-
RAM
28 KB
-

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Core
Cortex-M3 +
Cortex-M0
-
Size
14 * 23 mm
-
Antenna
PCB / IPEX
50 ohm impedance
3 Size and pin definition
Pin No.
Item
Direction
Description
1
GND
-
Ground, connecting to power source referential ground
2
DIO_0
Input/Output
General IO port, sensor controller (see CC2640 manual for details)
3
DIO_1
Input/Output
General IO port, sensor controller (see CC2640 manual for details)
4
RXD
Input/Output
Serial receive pin
5
JTAG_TMS
Input/Output
JTAG_TMSC（see CC2640 manual for details）
6
JTAG_TCK
Input/Output
JTAG_TCKC（see CC2640 manual for details）
7
TXD
Input/Output
Serial port transmit pin
8
DIO_4
Input/Output
High drive IO, JTAG_TDI（see CC2640 manual for details）

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9
GND
-
Ground, connecting to power source referential ground
10
nRESET
Input
Reset（see CC2640 manual for details）
11
VDD
-
Power supply: 1.8V ~ 3.8V
12
DIO_5
Input/Output
SLEEP pin, trigger and wake up
13
GND
-
Ground, connect to the power reference ground
14
DIO_6
Input/Output
MRDY pin, trigger serial reception
15
DIO_7
Input/Output
SRDY pin, wake up external MCU
16
DIO_8
Input/Output
Connection, output low level
17
DIO_9
Input/Output
General IO, sensor controller, digital analog（see CC2640 manual for
details）
18
GND
-
Ground electrode, connect to power reference ground
★Please refer to “CC2640 Datasheet” of TI for pin definition, software drive and protocol★
4 Circuit design
TMS, TCK, reset, and ground need to be connected between the emulator and the module, and an additional 3.3V
power supply is required for the emulator;
Use USB to UART module to connect with module, module serial port and IO port are multiplexed, users can set
according to their own needs;
Please note that good grounding is required. When there is a large area of grounding, the power supply ripple is
small. Increase the filter capacitor and try to be close to the VCC and GND pins of the module.

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5 Operation mode
No.
Operation
mode
Function Description
1
Low power
consumptio
n
The module enters low power mode after it powers on and the module keeps in advertising
state. The serial port stops receiving any data while transparent output function of Bluetooth
will not be affected, which means serial output function is still valid in this mode, data
received by Bluetooth can output via serial ports.
2
Transparent
transmissio
n
In the low power consumption mode, the module enters the state of serial port receiving by
pulling down DIO_6 pin. When the Bluetooth is not connected, it keeps in command reception
status; When the Bluetooth is connected, it’s in transparent transmission mode, the data sent by
the serial port to the Bluetooth module can be sent out via Bluetooth. By inputting character
“+++”, the module enters the instruction configuration mode and displays “CMD IN”,
meaning to enter the command mode; Inputting the character “+++” again, the module returns
to command input mode and displays “CMD OUT”.
3
Sleep
By giving the DIO_5 pin a low level of at least 300ms, the module goes into sleep mode and
again triggers the pin, the module returns to low power mode.
5.1 Multiple roles
This module can be configured as a multi-role mode through the instruction AT+ROLE=1. In this mode, each module
can act as master or slave, one device supports three connections, as shown in figure 1.
Figure 1
It refers to one master- multi slaves. device 1 can connect device 2, device 3 and device 4 at the same time. The data
sent by device 1 can be received by other three devices simultaneously.

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Figure 2
It refers to multi-masters-one slave. Device 1 can connect device 2, device 3 and device 4 at the same time. The data sent
by device 1 can be received by other three devices simultaneously, the data sent by device 2, device 3 and device 4 can be
received by device 1.
Figure 3
It refers to the topological structure of one master- multi slaves and multi masters- one slave. In the left picture,
device 1 can be scanned by device 4 after it connects equipment 2 and equipment 3 at a same time, the connection will be
created. The data sent by equipment 1 can be simultaneously received by other three devices, the data sent by equipment
2, equipment 3 and equipment 4 can be received by equipment 1. In the right picture, the device 1 can be scanned by
device 3 and device 4 after it connects device 2, the connection will be created. The data sent by device 1 can be
simultaneously received by other three devices, the data sent by device 2,device 3 and device 4 can be received by device
1.
5.2 Transparent Continuous Transmission
The module supports transparent continuous transmission, and the baud rate set under continuous transmission can be up
to 19200bps. That is to say, the sender's baud rate is not higher than 19200bps, and the receiving side baud rate is not
lower than the baud rate set by the receiver, no matter how large or even continuous data is received by the serial port.
Flow, there will be no data loss phenomenon, realizing a transparent transmission in the true sense.

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6 Instruction Operation
No
Command
Description
1
Factory
parameter
configuration
See more details in Factory parameter configuration command
2
AT Instruction
set
See more details in 4.11 AT command
3
Instruction
format
All operating instruction formats are in the normal string input mode, no newline, no
carriage return, non-hexadecimal For example, query baud rate, the format is AT+UART
Set the baud rate in the format of AT + UART = 115200, 8, 1, 0
6.1 Command response
Returned value
Description
OK—AT+instruction:
Query response return
PARA SET:
Set response return
CMD ERROR
Command error
RANG ERR
Configuration range error
PARA ERR
Parameter configuration error
PARITY ERR
Serial parity bit error
STOP ERR
Serial stop bit error
DATA ERR
Serial data bit error
BAUD ERR
Serial baud rate error
6.2 AT Command
+++
Mode switching instruction
AT+RESET
Reset instruction
AT+FACTORY
Restore default settings
AT+VER
Query version information
AT+MAC
Query MAC address
AT+NAME
Query /Set device’s name
AT+UART
Query baud rate
AT+ROLE
Query/Set device’s role
AT+ADVIN
Query/Set advertising interval

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AT+CONIN
Query/Set connection interval
AT+ADVON
Open advertising
AT+ADVOFF
Close advertising
AT+TXPWR
Query/Set power
AT+RSSI
Acquire the RSSI of connected device
AT+DISCONN
Disconnection
AT+UUID
Query/Set UUID
AT+ADVDATA
Query/Set advertising data
AT+IBEACON
Query/Set IBEACON data
AT+SCAN
Scan advertising device
AT+CONNECT
Connect to specified device
6.3 Mode switching
Command
Description
Echo
+++
Mode switching
CMD IN，CMD OUT
This command is used to switch to the command mode after the device has been connected, or to enter the transparent
transmission from the command mode. The transparent mode enters the command mode to generate the echo CMD IN,
and enters the transparent mode from the command mode to generate the echo CMD OUT.
6.4 Reset
Command
Description
Echo
AT+RESET
System Reset
Null
After executing this instruction, the module generates a reset operation.
6.5 Restore the default settings
Command
Description
Echo
AT+ FACTORY
Restore the default
settings
OK--AT+FACTORY: Factory Mode SUCCESS
After executing this command, the module will be restored to factory settings and will be valid after reset.
6.6 Query version information
Command
Description
Echo

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AT+ VER
Query version
information
OK--AT+VER: HV: V1.0，SV: V1.0
After executing this command, the module will echo the current software and hardware version number.
6.7 Query MAC address
Command
Description
Echo
AT+ MAC
Query MAC address
如：OK--AT+MAC: 0x98072D8E79DE
After executing this instruction, the module will return to display the MAC address.
6.8 Query / Set device’s name
Command
Description
Echo
AT+ NAME
Query/Set device’s
name
Example: OK--AT+NAME: CdEbyte_MultiRole
Execute the command AT+NAME=CdEbyte_MultiRole to set the current module name, no more than 20 characters.
Return PARA SET: CdEbyte_MultiRole after success.
6.9 Query/Set UART configuration
Command
Description
Echo
AT+UART
Query/Set UART
Configuration
Example: OK--AT+UART: 115200,8,1,0
Execute the command AT+UART=115200,8,1,0 to set the current module name. After success, return PARA SET:
115200,8,1,0.
The first data represents the baud rate: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 128000, 230400, 256000,
460800, 921600;
The second data represents the data bit: 5,6,7,8;
The third data represents the stop bit: 0,1;
The fourth data represents the check digit: 0(none)，1(even)，2(odd)).
6.10 Query/Set device’s role
Command
Description
Echo
AT+ROLE
Query/Set device’s role
Example: OK--AT+ROLE: Normal
Execute the command AT+ROLE=0 to set the current module role to normal mode. After successful, return PARA SET:
Normal；
Execute the command AT+ROLE=1 to set the current module role to multi-role mode. After successful, return to PARA

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SET: MultiRole.
6.11 Query/Set advertising interval
Command
Description
Echo
AT+ADVIN
Query/Set advertising
interval
Example: OK--AT+ADVIN: 160
After executing the AT+ADVIN=160 command, it returns to PARA SET after successful: AT+ADVIN=160. Among
them, the broadcast time = set parameter * 0625ms, if set 160, the broadcast gap is 160 * 0625ms = 100ms. Setting
range: 12 ~ 16000.
6.12 Query/Set connection interval
Command
Description
Echo
AT+CONIN
Query/Set connection
interval
Example: OK--AT+CONIN: 200,200,0,1000
Execute the command AT+CONIN=200,200,0,1000 to set the current module name. After success, return PARA SET:
200,200,0,1000.
The first data represents the minimum connection gap: 6 ~ 3200, connection gap time = set parameter * 1.25ms, if the
setting parameter is 200, the connection gap time = 200 * 1.25ms = 250ms;
The second data represents the maximum connection gap: 6 ~ 3200, the same as the minimum connection gap setting;
The third data represents a delayed event: 0 ~ 499;
The fourth data represents the connection timeout period: 10~3200.
6.13 Open advertising
Command
Description
Echo
AT+ADVON
Open advertising
Example: OK--AT+ADVON: Advertising...
After executing this command, the module will turn on the broadcast. In Normal mode, if this device is connected, the
broadcast will not be executed after executing this command. In MultiRole mode, if the number of connected devices of
this device reaches 3, the broadcast will not be executed after this command is executed.
6.14 Close advertising
Command
Description
Echo
AT+ADVOFF
Close advertising
Example: OK--AT+ADVOFF: Advert closeing...
After executing this command, the module will turn off the broadcast.

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6.15 Query/Set power
Command
Description
Echo
AT+TXPWR
Query/Set power
Example: OK--AT+TXPWR: 0dBm
Execute the command AT+TXPWR=2dbm to set the transmit power of the current module. After successful, return to
PARA SET: AT+TXPWR=2dbm.
Power range: 2dbm, 1dbm, 0dbm, -3dbm, -6dbm, -9dbm, -12dbm, -15dbm, -18dbm, -21dbm.
6.16 Acquire the RSSI of connected devices
Command
Description
Echo
AT+RSSI
Acquire the RSSI of
connected devices
Example: OK--AT+RSSI: -64dBm
After executing this instruction, the module will return the connected device RSSI. This command is valid only after the
device has been connected.
6.17 Disconnection
Command
Description
Echo
AT+DISCONN
Disconnection
Example: PARA SET: Connected to: 0 Disconnected!
After executing this command, the module will disconnect the device.
6.18 Query/Set UUID
Command
Description
Echo
AT+UUID
Query/Set UUID
Example: OK--AT+UUID:
0,0xFFF0
1,0xFFF1
2,0xFFF2
3,0xFFF3
Execute the command AT+UUID=0, FFF0 sets the current module name, and returns PARA SET after success:
AT+UUID=0, FFF0.
The first parameter sets the first UUID, which ranges from 0 to 3;
The second parameter is the set UUID number. Please refer to the Bluetooth specification protocol to set the
corresponding UUID.

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6.19 Query/Set advertising data
Command
Description
Echo
AT+ADVDATA
Query/Set advertising
data
Example: OK--AT+ADVDATA: 0x0A00010203040506070809
After executing AT+ADVDATA=0A00010203040506070809, the module will return PARA SET:
0x0A00010203040506070809.
The above parameter 0A represents the length of the data to be input, and 00010203040506070809 represents the data to
be input. The input data is entered in hexadecimal format. For example, 00 stands for 0x00, 01 stands for 0x01, and 02
stands for 0x02. The data length does not exceed 23 bytes.
6.20 Query/Set IBEACON data
Command
Description
Echo
AT+IBEACON
Query/Set IBEACON data
Example: OK--AT+ADVOFF: Advert closeing...
After executing AT+IBEACON=, the module will return PARA SET:
0x020106061AFF4C000215B9407F30F5F8466EAFF925556B57FE6D0049000AC5.
The character length does not exceed 31 bytes.
The parameters under this command should be in accordance with the format specified by Apple's official IBEACON
protocol.
6.21 Scan advertising device
Command
Description
Echo
AT+SCAN
Scan advertising device
Example: OK--AT+SCAN: Discovering with AT_SCAN...
Device 1: 0xDE798E2D0798
If a device is broadcasting, a scan to the device's MAC address will be printed. The broadcast scanned by this instruction
must be the same type of broadcast as the device service. If the service number of the module is FFF0, only the device
with the service number FFF0 can be scanned, and other service numbers cannot be scanned.
6.22 Connect to specified device
Command
Description
Echo
AT+CONNECT=1
Connect to specified
device
CONNECT OK,
After executing this command, the module will return to display the connection success message CONNECT OK.
When the connection is successfully established, the IOID_8 pin will be pulled low and when disconnected, DIO_8 will be
set high.

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7 Basic operation
7.1 Hardware design
It is recommended to use a DC stabilized power supply. The power supply ripple factor is as small as possible and
the module needs to be reliably grounded.
Please pay attention to the correct connection of the positive and negative poles of the power supply, reverse
connection may cause permanent damage to the module.
Please check the power supply to ensure that between the recommended supply voltage, if exceeding the maximum,
the module will be permanently damaged;
Please check the stability of the power supply. Voltage can not fluctuate greatly and frequently;
When designing the power supply circuit for the module, it is often recommended to reserve more than 30% of the
margin, so the whole machine is beneficial for long-term stable operation;
The module should be as far away as possible from the power supply, transformers, high-frequency wiring and other
parts with large electromagnetic interference;
Bottom Layer High-frequency digital routing, high-frequency analog routing, and power routing must be avoided
under the module. If it is necessary to pass through the module, assume that the module is soldered to the Top Layer,
and the copper is spread on the Top Layer of the module contact part(well grounded), it must be close to the digital
part of the module and routed in the Bottom Layer;
Assuming the module is soldered or placed over the Top Layer, it is wrong to randomly route over the Bottom Layer
or other layers, which will affect the module's spurs and receiving sensitivity to varying degrees;
It is assumed that there are devices with large electromagnetic interference around the module that will greatly
affect the performance. It is recommended to keep them away from the module according to the strength of the
interference. If necessary, appropriate isolation and shielding can be done;
Assume that there are traces with large electromagnetic interference (high-frequency digital, high-frequency analog,
power traces) around the module that will greatly affect the performance of the module. It is recommended to stay
away from the module according to the strength of the interference.If necessary, appropriate isolation and shielding
can be done;
If the communication line uses a 5V level, a 1k-5.1k resistor must be connected in series (not recommended, there is
still a risk of damage);
Try to stay away from some physical layers such as TTL protocol at 2.4GHz , for example: USB3.0;
The mounting structure of antenna has a great influence on the performance of the module. It is necessary to ensure
that the antenna is exposed, preferably vertically upward. When the module is mounted inside the case, use a good
antenna extension cable to extend the antenna to the outside;
The antenna must not be installed inside the metal case, which will cause the transmission distance to be greatly
weakened.
7.2 Programming
The core of this module is CC2630, its driving method is completely equivalent to CC2630, the user can operate
according to the CC2630 chip manual (see CC2630 manual for details);

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It is recommended to use the Code Composer Studio (CCS) Integrated Development Environment (IDE).
8 FAQ
8.1 Communication range is too short
The communication distance will be affected when obstacle exists;
Data lose rate will be affected by temperature, humidity and co-channel interference;
The ground will absorb and reflect wireless radio wave, so the performance will be poor when testing near ground;
Sea water has great ability in absorbing wireless radio wave, so performance will be poor when testing near the sea;
The signal will be affected when the antenna is near metal object or put in a metal case;
Power register was set incorrectly, air data rate is set as too high (the higher the air data rate, the shorter the
distance);
The power supply low voltage under room temperature is lower than recommended value, the lower the voltage, the
lower the transmitting power;
Due to antenna quality or poor matching between antenna and module.
8.2 Module is easy to damage
Please check the power supply source, ensure it is between the recommended supply voltage, voltage higher than
the maximum will damage the module.
Please check the stability of power source, the voltage cannot fluctuate too much.
Please make sure antistatic measure are taken when installing and using, high frequency devices have electrostatic
susceptibility.
Please ensure the humidity is within limited range, some parts are sensitive to humidity.
Please avoid using modules under too high or too low temperature.
8.3 BER(Bit Error Rate) is high
here are co-channel signal interference nearby, please be away from interference sources or modify frequency and
channel to avoid interference;
Poor power supply may cause messy code. Make sure that the power supply is reliable;
The extension line and feeder quality are poor or too long, so the bit error rate is high.
9 Production guidance
9.1 Reflow soldering temperature
Profile Feature
Curve characteristics
Sn-Pb Assembly
Pb-Free Assembly
Solder Paste
Solder paste
Sn63/Pb37
Sn96.5/Ag3/Cu0.5
Preheat Temperature min （Tsmin）
Min preheating temp.
100℃
150℃
Preheat temperature max (Tsmax)
Max preheating temp.
150℃
200℃
Preheat Time (Tsmin to Tsmax)(ts)
Preheating time
60-120 sec
60-120 sec
Average ramp-up rate(Tsmax to Tp)
Average ramp-up rate
3℃/second max
3℃/second max

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Liquidous Temperature (TL)
Liquid phase temp
183℃
217℃
Time（tL）Maintained Above（TL）
Time below liquid phase
line
60-90 sec
30-90 sec
Peak temperature（Tp）
Peak temp
220-235℃
230-250℃
Aveage ramp-down rate（Tp to Tsmax）
Average ramp-down rate
6℃/second max
6℃/second max
Time 25℃ to peak temperature
Time to peak
temperature for 25℃
6 minutes max
8 minutes max
9.2 Reflow soldering curve
10 E72 series
Model
IC
Frequency
Hz
Tx power
dBm
Distance
km
Air data
rate
bps
Package
form
Size
mm
Antenna
E72-2G4M23S1
A
CC2630
2.4G
23
1.5
-
SMD
17.5 * 33.5
PCB/IPEX
E72-2G4M05S1
A
CC2630
2.4G
5
0.5
-
SMD
17.5 * 28.7
PCB/IPEX
E72-2G4M02S2
CC2640
2.4G
2
0.3
BLE 4.1
SMD
14 * 23
PCB/IPEX

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B
E72-2G4M05S1
B
CC2640
2.4G
5
0.5
BLE 4.2
SMD
17.5 * 28.7
PCB/IPEX
11 Antenna recommendation
11.1 Recommendation
The antenna is an important role in the communication process. A good antenna can largely improve the
communication system. Therefore, we recommend some antennas for wireless modules with excellent performance and
reasonable price.
Model No.
Type
Frequency
Hz
Interfac
e
Gain dBi
Height
Cable
Function feature
TX2400-NP-5010
Flexible
Antenna
2.4G
IPEX
2
50*10mm
-
FPC soft antenna
TX2400-XP-150
Sucker
antenna
2.4G
SMA-J
3.5
15cm
150cm
High Gain
TX2400-JK-20
Rubber
antenna
2.4G
SMA-J
3
200mm
-
Flexible&ommidirectional
TX2400-JK-11
Rubber
antenna
2.4G
SMA-J
2.5
110mm
-
Flexible&ommidirectional
TX2400-JZ-3
Rubber
antenna
2.4G
SMA-J
2
30mm
-
Short straight
&omnidirectional
11.2 Antenna selection
The onboard PCB antenna is enabled by default at the factory, If users enable the IPEX antenna, change the 0R
resistor to the above figure (right).and the 0R resistor is shown in the figure above (left).